fact or fiction

What is a robot, and how small can robots be? Are there robots the size of a hand? How about the size of a strand of hair? Can a robot be as tiny as a single molecule? Learn what makes a robot a robot, then step down in size and find out which robots are real and which are science fiction. This children's book is available in hardcover, softcover and digital download via www.lulu.com and www.amazon.com. See Resources tab for links.

What is a nanometer? What things are measured in nanometers? Is a red blood cell bigger or smaller than a bacteria? Step down in size to find out the answers and learn about different types of units that are used to measure very tiny things. This children's book may be downloaded for free from or purchased in hard copy at www.lulu.com or www.amazon.com. See Resources tab for links.